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My tv screen went dim as my son was playing his xbox and then starting flashing .. I checked the xbox on another tv and it works fine .. So i know its this tv i tried messing with the tv settings but it is impossible lol well taking forever for I can barly see the screen let alone it keeps flashing on n off so if i try to select something and it flashes i go to something else so I have to wait and select it real fast while on screen in which is just as difdicult . Is this fixable?? Or do i have to buy another tv .

I think the problem is coming from the HDMI port, sending wrong information, clean it with a compressor air, if it doesn’t work then you might need to remove it from the motherboard, but I don’t guarantee anything you can wait for other answers.